Two of the rockets are meant for Rus R&D project which aims to upgrade the Soyuz launch vehicles, primarily to replace the analog systems with digital ones and to boost the efficiency of engines

MOSCOW, July 15. /TASS/. A total of seven launch vehicles of the Soyuz family will be built for the Russian Defense Ministry this year, Alexander Kirilin, the Director General of the Progress Missile and Space Center said on Friday.